Pleasing Fungus Beetle

Description:

Large, orange and black patterned beetles

Habitat:

I spotted a bunch of these beetles eating Ganoderma tsugae on a dead, fallen tree in a wet, mixed forest.

Notes:

This is either Megalodacne fasciata or Megalodacne heros. I thought it was Megalodacne heros, but it looks like it might have rows of fine punctures on the elytra in photo 3, which would indicate Megalodacne fasciata.